The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Sep. 02, 1997
Bernard Eugene Sigmon, Gilbert, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A three-way phase shifting power coupler (20) processes a primary signal (26) to provide first, second, and third secondary signals (32, 38, and 44) of substantially equal amplitudes. The first and second secondary signals (32 and 38) are phase shifted to be in-phase relative to the primary signal (26). The third secondary signal (44) is phase shifted to produce a quarter-wavelength difference between third secondary signal (44) and the first and second secondary signals (32 and 38). First, second, and third secondary signals (32, 38, and 44) are provided for distribution into a multi-stage amplifier (22). The power coupler (20) is preferably implemented in microstrip.